C++ :

#include<iostream>
using namespace std;
int main()
{
    float c,f;
    cin>>c;    
    f=9.0/5*c+32;
    cout.precision(2);
    cout.setf(ios::fixed);
    cout<<f<<endl;
   // system("pause");
    return 0;
}

Python :

# coding=utf-8
c=int(input())
print('%0.2f'%(9/5*c+32))